import { type FpHonoEnv } from "../utils/index.js";
import type { FpConfig, FpConfigOptions } from "./types.js";
/**
 * Determines the "mode" of the application based on the provided configuration and environment variables.
 * Precendence is given to the user-provided config, then the env vars.
 * The default value is "local" if the otelEndpoint includes "localhost",
 * otherwise it is "production".
 */
export declare function getMode(otelEndpoint: string | null, userConfig: FpConfigOptions | undefined, env: FpHonoEnv): "local" | "production";
/**
 * Get the OTLP endpoint from the environment variables.
 */
export declare function getOtelEndpoint(env: FpHonoEnv): string | null;
/**
 * Get the bearer token for the OTLP endpoint from the environment variables.
 */
export declare function getOtelToken(env: FpHonoEnv): string | null;
/**
 * Get the library's log level from the environment variables.
 */
export declare function getLogLevel(config: FpConfig, env: FpHonoEnv): string | null;
export declare function getServiceName(env: FpHonoEnv, fallback: string): string;